iCloud Mail not syncing across devices

Keith, actually I am really surprise that it has been syncing for you before.. I have been using iCloud email for 3 years and never synced the read, deleted or moved emailed across all devices!!!

This is a serious issue Apple needs to look at.

I’m the same Keith - mine literally stopped syncing 2 weeks ago. Use it on iPad / iPhone / MacBook Air, now it only syncs from MacBook Air. like you I didn’t do anything. It has always synced for me for years!! Very frustrating, I hadn’t updated. Will our request in tk Apple and see what they say

We pay for extra iCloud storage like lots of people do, I’m sure. It’s bigger than mail. NO NOTIFICATIONS sync. FaceTime, Reminders and notes don’t sync across my devices. Neither do notifications from third party apps. This was never a problem in the past. It’s definitely a server level issue.

✅ CONTINUED BEST PRACTICE (for me):

As long as I keep my Mac running 24 hours a day, Mail seems to sync properly. That means no standby mode, disabling any energy saver settings and no sleep. Turn the [docking station] monitor off (or reduce brightness) when not using. Currently using wi-fi but I plan to connect directly to a router in the new office.

Currently, I’m using a MBP on 10.15.6. I have two iPhone models on slightly different iOS receiving and syncing mail properly.

What the Mac has to do with Mail syncing, I have no idea. If I disconnect the MBP from power and it goes into standby mode, I'll start seeing a slowdown and messages not working well together.

GREAT NEWS folks... I think “I think” the problem been resolve in the latest iOS14/iPadOS 14 Beta 6. I have noticed messages started to sync. Settings in Mail (Push; ON) and (Fetch: Hourly).

Fingers crossed this will Carey on working.

UPDATE: please accept my apology, I think it only worked because I have been using Apple Smart Case which is charging the iPhone constantly so no wonder why it work. Now I have taken the smart case off, I am back to SQUARE ONE. All I can say, I hope Apple listen to this and find a solution.

I had the same problem - emails no longer syncing between iMac, iPad and iPhone after an upgrade. Tried the usual signing out and in again to iCloud from all devices, didn't work. Solved it by creating a new password on my iMac for iCloud (use the forgotten password link). When you create a new password it will ask you to sign out of all devices i.e iPad and iPhone. You have to sign in again via iCloud settings on all your mobile devices when the iMac has updated the iCloud password. It will also send a 6 digit security code as confirmation to your secured device. This seemed to do the trick - hope this helps

Thank you. That is very helpful.. I gave up and switched to Spark. I had intended to standardise on Apple Mail with the ***** Mailsuite. I will try again if your solution persists. Why should we have to put up with this. This is the very essence of Apple Mail. I think we need to ensure that every change, or update to Apple Mail is very quickly tested for synchronisation. That must be helpful to both the community and to Apple. I can’t say I am looking forward to switching back!

Keith.

It's been about a week so far since I tried this work around, 9th September and all the devices are syncing as they should. I'm not sure if this problem is caused by a bug in Mail or a bug in iCloud. I had thought it could be Mail so I had rebuilt it's database to see if that worked. Although all the mail was regenerated through iCloud it still wasn't syncing. The above fix seems to be working ok so far. We'll see what happens after a Big Sur upgrade :)

I just updated to iOS 14 on my iPhone and this started happening to me on Mac mail with my gmail account...between my iPad, my phone, and my MacBook, none of them will sync now. I’m having to mark my messages as read manually on each device. I have signed out and back in to iCloud on both devices to no avail.

As difficult as it may be, we should all wean ourselves off iCloud email. Apple doesn’t care and will not direct resources to this problem because it’s not a profit center. This problem has existed for years.

This is exactly why I rarely implement Apple updates. Used to, I was excited for new features and tools. Now, features are missing, things change without notice, things break and it's more of a hassle than a benefit.

Right - this is similar to me keeping my MBP running without going into standby mode. As long as there is a device constantly pinging and managing, syncing seems to work. Why the **** the servers don't seem to manage this is beyond me.

@William Franklin

Couldn't have said it better. Prime example, numerous people want to continue using some very good 32-bit programs, but they will not work with the Macbook upgrades to 64-bit. If anyone comes up with a work around it would be greatly appreciated. I know this is off-topic and apologize, but it relates to the issues with Apple upgrades, so please excuse my diversion ;)

Thanks for the update! I tried this, and alas, no avail! I'm curious if this was an iCloud issue for you or do you use Gmail? Mine is not syncing Gmail. I'm having to use webmail now so that I can keep my account synced between devices and I hate it! :)